delwin.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* Copyright 2001 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#ifndef lint
static char
sccsid[] = "@(#)delwin.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
#endif /* not lint */
#include "curses.ext"
#include <malloc.h>
/*
* This routine deletes a window and releases it back to the system.
*/
int
delwin(WINDOW *win)
{
int i;
WINDOW *wp, *np;
if (win->_orig == NULL) {
/*
* If we are the original window, delete the space for
* all the subwindows, and the array of space as well.
*/
for (i = 0; i < win->_maxy && win->_y[i]; i++)
free(win->_y[i]);
free(win->_firstch);
free(win->_lastch);
wp = win->_nextp;
while (wp != win) {
np = wp->_nextp;
(void) delwin(wp);
wp = np;
}
} else {
/*
* If we are a subwindow, take ourselves out of the
* list. NOTE: if we are a subwindow, the minimum list
* is orig followed by this subwindow, so there are
* always at least two windows in the list.
*/
for (wp = win->_nextp; wp->_nextp != win; wp = wp->_nextp)
continue;
wp->_nextp = win->_nextp;
}
free(win->_y);
free(win);
return (OK);
}